limnology Archives - Geography Realm

The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image of the Caspian Sea on June 4, 2010

What is a Closed Lake?

February 14, 2023February 14, 2023 by Caitlin Dempsey

Closed lakes are bodies of water that do not drain into an ocean or river.

The color of water is a by product of how light is absorbed. Mangrove islands bespeckle the bay in upper Lostman's River. Photo: Paul Nelson, U.S. Geological Survey. Public domain.

Rivers in the United States are Changing Colors

April 14, 2023December 31, 2020 by Caitlin Dempsey

A team of researchers analyzed Landsat images over a 38-year period and found that a significant number of large U.S. rivers are changing colors.

Haloarchaea are salt-loving microorganisms that impart the pink and red colors of Lake Natron in Tanzania. Image: Landsat 8 acquired March 6, 2017.

This Lake is Home to the Highest Concentrations of Lesser Flamingos in East Africa

August 29, 2020October 11, 2019 by Caitlin Dempsey

The protective salt marshes that ring Lake Natron in Tanzania have nurtured the highest concentrations of lesser and greater flamingos in East Africa.

Laguna Grande is a 50-hectare salt-water lagoon located in the municipio of Fajardo, in the eastern-most tip of Puerto Rico. Photo: USGS.

Limnology

August 12, 2020January 30, 2015 by Elizabeth Borneman

Limnology is the study of bodies of water located inland such as lakes, rivers, wetlands, streams, watersheds, and reservoirs. Limnologists study how the weather, climate, … Read more

Aquatic Dead Zones

October 10, 2019February 26, 2014 by Caitlin Dempsey

Aquatic dead zones are bodies of water where the oxygen conditions are so low that marine life is unable to be supported.